CN115001234B

CN115001234B - Servo motor convenient to mount with coupler

Info

Publication number: CN115001234B
Application number: CN202210926409.0A
Authority: CN
Inventors: 黄华林; 尹告民
Original assignee: Shenzhen Sankatec Technology Co ltd
Current assignee: Shenzhen Sankatec Technology Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-10-21
Anticipated expiration: 2042-08-03
Also published as: CN115001234A

Abstract

The invention relates to the technical field of servo motors, in particular to a servo motor convenient to mount with a coupler, which comprises a motor body, wherein a front end cover is mounted at the output end of the motor body; through installing location structure on motor output shaft to can be according to the model of the shaft coupling of selection, adjust the holding ring to needs male degree of depth, so that when cup jointing the shaft coupling, can target in place by one step, saved the adjust time of the depth of insertion when cup jointing the shaft coupling, thereby conveniently carry out the quick installation of shaft coupling.

Description

Servo motor convenient to mount with coupler

Technical Field

The invention relates to the technical field of servo motors, in particular to a servo motor convenient to mount with a coupler.

Background

Since the servo motor has the advantages of being capable of controlling speed and being accurate in position precision, and converting a voltage signal into torque and a rotating speed to drive a controlled object, the servo motor becomes important as a main power output element in a machine tool. When the servo motor is arranged on the machine tool, the motor is arranged on the motor mounting seat, and then the output shaft of the servo motor is fixedly connected with the screw rod through the coupler, so that the servo motor drives the screw rod to rotate.

Present servo motor's output shaft all is an optical axis, when inserting the shaft coupling, be difficult to control the male degree of depth, still need adjust many times when will causing follow-up connection lead screw, comparatively waste time and energy, and still be equipped with on the servo motor with the boss of motor mount pad bayonet socket location, but when installing servo motor on some motor mount pads that do not set up the bayonet socket, because the existence of boss will cause servo motor's front end housing and the terminal surface of motor mount pad to have the clearance, will cause the relatively poor condition of servo motor installation stability, and there is the rotation clearance between front end housing and motor output shaft, will have the inside that dust impurity got into the motor, also can reduce servo motor's life.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a servo motor which is convenient to be installed with a coupler.

The technical scheme adopted by the invention for solving the technical problem is as follows: a servo motor convenient to mount with a coupler comprises a motor body, wherein a front end cover is mounted at the output end of the motor body, an output shaft is rotatably connected onto the motor body and the front end cover, a positioning structure is mounted on the output shaft, a conversion structure is mounted on the front end cover, a protection structure is arranged on the front end cover, an anti-collision structure is further mounted on the front end cover, and an anti-falling structure is further arranged on the front end cover;

the positioning structure comprises a bolt, the output shaft is connected with the bolt in a rotating mode, the inner portion of the output shaft is connected with a threaded sleeve in a circular ring structure in a sliding mode, the threaded sleeve is connected with the bolt in a threaded mode, two sliding grooves which are arranged in parallel are formed in the output shaft, a sliding block is connected inside each sliding groove in a sliding mode, the sliding blocks are fixedly connected with the threaded sleeve, and the other ends of the sliding blocks are fixedly connected with a positioning ring which slides outside the output shaft.

Concretely, the transform structure includes the guide bar fixedly connected with guide bar on the front end housing sliding connection has the boss on the front end housing, just boss and guide bar sliding connection be equipped with the spacing groove on the boss the inside sliding connection of front end housing has the installation piece the one end fixedly connected with stopper of installation piece, stopper and spacing groove block.

Specifically, the inside sliding connection of front end housing has the connecting rod, just the one end and the installation piece fixed connection of connecting rod, the other end and the smooth button fixed connection of connecting rod, just the one end of smooth button is the arc structure.

Specifically, the guide bar is equipped with a plurality ofly, and a plurality of cross-sections are the guide bar of T shape structure and are annular array distribution, and is a plurality of the outside of guide bar all is overlapped and is equipped with first spring, just the both ends of first spring respectively with boss and front end housing fixed connection.

Specifically, the inside of front end housing is two slide bars of symmetrical relation fixedly connected with, just installation piece and slide bar sliding connection the outside cover of slide bar is equipped with the second spring, just the both ends of second spring respectively with installation piece and front end housing fixed connection.

Specifically, the spacing groove is the loop configuration, just the cross-section one end of spacing groove is the setting of loudspeaker form opening, the one end of stopper is the trapezium structure.

Concretely, protective structure includes the gas tank the inside of front end housing is equipped with the gas tank the inside of gas tank has the rubber buffer through third spring sliding connection, just the both ends of third spring respectively with rubber buffer and front end housing fixed connection the other end fixedly connected with of rubber buffer supports the touch panel the outside fixedly connected with stripper plate of output shaft the inside of front end housing is equipped with the annular that is ring shape structure, annular and gas tank communicate through the intercommunication groove first check valve is still installed to the inside in intercommunication groove the one end that the front end housing is close to the output shaft is that annular array is equipped with a plurality ofly and the communicating venthole of annular the second check valve with outside intercommunication is still installed to the one end in gas tank.

Specifically, the one end that the second check valve is close to the outside is provided with the filter layer the other end block of filter layer has the sealing plug, the gas tank is equipped with a plurality ofly, and is a plurality of the gas tank is annular array distribution, the one end of touch panel is convex structure, the one end of stripper plate also is convex structure.

The anti-collision structure comprises anti-collision blocks, the front end cover is connected with the anti-collision blocks through fourth springs in a sliding mode, the two ends of each fourth spring are fixedly connected with the anti-collision blocks and the front end cover respectively, the other ends of the anti-collision blocks are fixedly connected with anti-collision pads, the anti-collision blocks are provided with four anti-collision blocks, and the anti-collision blocks are of arc-shaped structures.

Specifically, the anti-drop structure includes the fixed orifices four diagonal departments of front end housing all are equipped with the fixed orifices, four equal sliding connection in the inside of fixed orifices has first solid fixed ring and the solid fixed ring of second, just fixedly connected with fifth spring between first solid fixed ring and the solid fixed ring of second the solid fixed ring's the other end fixedly connected with shock pad first gu fixed ring's the other end fixedly connected with a plurality of depression bars, and a plurality of the depression bar runs through the front end housing and extends to the outside, a plurality of the tip of depression bar all rotates and is connected with the ball first gu fixed ring's outer lane fixedly connected with movable block fixedly connected with between movable block and the front end housing fixedly connected with sixth spring, the inside diameter of first solid fixed ring, the solid fixed ring of second and shock pad all is greater than the inside diameter of fixed orifices.

The invention has the beneficial effects that:

(1) According to the servo motor convenient to mount with the coupler, the positioning structure is mounted on the output shaft of the motor, so that the positioning ring can be adjusted to the depth required to be inserted according to the type of the selected coupler, the coupler can be sleeved in one step, the time for adjusting the insertion depth when the coupler is sleeved is saved, and the coupler can be mounted quickly.

(2) According to the servo motor convenient to mount with the coupler, the switching structure mounted on the front end cover enables the motor to be suitable for a motor mounting seat with a bayonet and also suitable for a motor mounting seat without a bayonet, so that the use range of the motor can be enlarged, and the boss is convenient and simple to retract and release.

(3) According to the servo motor convenient to mount with the coupler, due to the fact that the protection structure is mounted on the front end cover, air blowing actions can be generated when the motor works normally, air without dust impurities is blown out, dust which is about to enter a gap between the output shaft and the motor is blown away in time, and therefore the situation that the motor is damaged due to the fact that the dust impurities enter the gap can be avoided.

(4) According to the servo motor convenient to mount with the coupler, the anti-collision structure is arranged on the front end cover, so that the condition that internal parts of the motor are damaged when the motor and the motor mounting seat are in rigid collision can be effectively avoided, the mounting quality is ensured, and the vibration of the motor in the working process can be further reduced by matching with the arrangement of the anti-falling structure, so that the motor is protected, the locking force of the locking bolt can be stronger, the condition that the locking bolt is automatically loosened under the vibration force can be effectively avoided, and the mounting effect is ensured.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the overall structure of a preferred embodiment of a servo motor of the present invention, which is convenient for installation with a coupler;

FIG. 2 is an enlarged view of the part A shown in FIG. 1;

FIG. 3 is a schematic view of the connection structure of the front end cover and the output shaft of the present invention;

FIG. 4 is an enlarged view of the structure of the portion B shown in FIG. 3;

FIG. 5 is an enlarged view of the structure of the portion C shown in FIG. 3;

FIG. 6 is a schematic view of a connection structure of the boss, the limiting groove and the limiting block of the present invention;

FIG. 7 is a schematic view of a connection structure of the extrusion block and the contact block of the present invention;

FIG. 8 is an enlarged view of the structure of the portion D shown in FIG. 7;

FIG. 9 is a schematic view of the connection structure of the front end cover and the crash block of the present invention;

fig. 10 is a schematic view of a connection structure of the first fixing ring and the second fixing ring of the present invention.

In the figure: 1. a motor body; 2. a front end cover; 3. an output shaft; 4. a positioning structure; 401. a bolt; 402. a positioning ring; 403. a chute; 404. a threaded sleeve; 405. a slider; 5. converting the structure; 501. a boss; 502. a slide button; 503. a guide bar; 504. a first spring; 505. a limiting groove; 506. mounting blocks; 507. a limiting block; 508. a connecting rod; 509. a slide bar; 510. a second spring; 6. a protective structure; 601. an air outlet; 602. an air tank; 603. a touch plate; 604. a rubber plug; 605. a first check valve; 606. a communicating groove; 607. a ring groove; 608. a compression plate; 609. a third spring; 610. a second one-way valve; 611. a filter layer; 612. a sealing plug; 7. an anti-collision structure; 701. an anti-collision block; 702. an anti-collision pad; 703. a fourth spring; 8. an anti-drop structure; 801. a fixing hole; 802. a shock pad; 803. a first retaining ring; 804. a fifth spring; 805. a second retaining ring; 806. a pressure lever; 807. a ball bearing; 808. a moving block; 809. and a sixth spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 10, the servo motor convenient for installation with a coupler of the present invention includes a motor body 1, a front end housing 2 is installed at an output end of the motor body 1, an output shaft 3 is rotatably connected to the motor body 1 and the front end housing 2, a positioning structure 4 is installed on the output shaft 3, a conversion structure 5 is installed on the front end housing 2, a protection structure 6 is arranged on the front end housing 2, an anti-collision structure 7 is further installed on the front end housing 2, and an anti-drop structure 8 is further installed on the front end housing 2;

the positioning structure 4 comprises a bolt 401, the output shaft 3 is rotatably connected with the bolt 401, the inner portion of the output shaft 3 is slidably connected with a threaded sleeve 404 which is of a circular ring structure, the threaded sleeve 404 is in threaded connection with the bolt 401, two parallel sliding grooves 403 are formed in the output shaft 3, two sliding blocks 405 are respectively slidably connected in the sliding grooves 403, the two sliding blocks 405 are fixedly connected with the threaded sleeve 404, and the other ends of the two sliding blocks 405 are fixedly connected with a positioning ring 402 which slides outside the output shaft 3.

Concretely, conversion structure 5 includes guide bar 503 fixedly connected with guide bar 503 on front end housing 2 sliding connection has boss 501 on front end housing 2, just boss 501 and guide bar 503 sliding connection be equipped with spacing groove 505 on boss 501 front end housing 2's inside sliding connection has installation piece 506 the one end fixedly connected with stopper 507 of installation piece 506, stopper 507 and spacing groove 505 block, front end housing 2's inside sliding connection has connecting rod 508, just the one end and the installation piece 506 fixed connection of connecting rod 508, the other end and the smooth knob 502 fixed connection of connecting rod 508, just the one end of smooth knob 502 is the arc structure, guide bar 503 is equipped with a plurality ofly, and a plurality of cross-sections are horn T shape structure's guide bar 503 and are the distribution of annular array, and are in a plurality of the outside of guide bar 503 all overlaps and is equipped with first spring 504, just the both ends of first spring 504 respectively with boss 501 and front end housing 2 fixed connection is ring shape of symmetry relation two inside of front end housing 2, and installation piece 509 and the outside sliding bar 510 of sliding bar 505 be equipped with the trapezoidal spring 510, the second end housing 510 is the trapezoidal spring 510, the installation piece 510 is the installation piece 510, the limit block 505 and the installation piece 510 is the trapezoidal spring 510.

Specifically, protective structure 6 includes gas tank 602 the inside of front end housing 2 is equipped with gas tank 602 the inside of gas tank 602 has rubber buffer 604 through third spring 609 sliding connection, just the both ends of third spring 609 respectively with rubber buffer 604 and 2 fixed connection of front end housing the other end fixedly connected with of rubber buffer 604 supports touch panel 603 the outside fixedly connected with stripper plate 608 of output shaft 3 the inside of front end housing 2 is equipped with annular structure's annular 607, annular 607 and gas tank 602 communicate through intercommunication groove 606 first check valve 605 is still installed to the inside of intercommunication groove 606 the one end that front end housing 2 is close to output shaft 3 is that annular array is equipped with a plurality ofly and the communicating venthole 601 of annular 607 the one end of gas tank 602 still installs the second check valve 610 with outside intercommunication, the one end that second check valve 610 is close to the outside is provided with filter layer 611 the other end block of filter layer 611 has 612, gas tank 602 is equipped with a plurality ofly, and a plurality ofly the gas tank 602 is the annular array distribution, the one end of circular arc-shaped array 603 is the one end of the circular arc-shaped stripper plate 603.

Specifically, crashproof structure 7 includes crashproof piece 701 there is crashproof piece 701 through fourth spring 703 sliding connection on the front end housing 2, just the both ends of fourth spring 703 respectively with crashproof piece 701 and front end housing 2 fixed connection the other end fixed connection of crashproof piece 701 has crashproof pad 702, crashproof piece 701 is equipped with four, and four crashproof piece 701 all is the arc structure.

Specifically, the anti-drop structure 8 includes a fixing hole 801, the fixing hole 801 is disposed at each of four opposite corners of the front end cover 2, a first fixing ring 803 and a second fixing ring 805 are slidably connected to the four fixing holes 801, a fifth spring 804 is fixedly connected between the first fixing ring 803 and the second fixing ring 805, a shock pad 802 is fixedly connected to the other end of the second fixing ring 805, a plurality of pressure rods 806 are fixedly connected to the other end of the first fixing ring 803, the pressure rods 806 penetrate through the front end cover 2 and extend to the outside, balls 807 are rotatably connected to ends of the pressure rods 806, a moving block 808 is fixedly connected to an outer ring of the first fixing ring 803, a sixth spring 809 is fixedly connected between the moving block 808 and the front end cover 2, and inner diameters of the first fixing ring 803, the second fixing ring 805 and the shock pad 802 are all greater than inner diameters of the fixing holes 801.

When the invention is used, firstly, the bolt 401 is rotated according to the selected model of the coupler, and the threaded sleeve 404 in threaded connection with the bolt 401 is limited by the two sliding blocks 405 sliding in the sliding groove 403, so that the threaded sleeve 404 can slide in the output shaft 3 when the bolt 401 is rotated, and the position of the positioning ring 402 fixed with the sliding blocks 405 on the output shaft 3 can be adjusted, therefore, the positioning ring 402 can be adjusted to the depth required to be inserted according to the selected model of the coupler, so that the coupler can be sleeved in place in one step, the adjusting time of the insertion depth when the coupler is sleeved is saved, the coupler can be conveniently and quickly installed, then, according to whether the motor mounting seat on a machine tool contains the position of the bayonet adjusting boss 501 or not, when the motor mounting seat is not provided with a bayonet, the external slide button 502 is pushed and pulled, the sliding button 502 drives the mounting block 506 to slide through the connecting rod 508, at this time, the limiting block 507 on the mounting block 506 slides along with the sliding until the limiting block 507 does not support the boss 501, then the boss 501 is pressed, the boss 501 can be completely accommodated in the groove of the front end cover 2, then the sliding button 502 is loosened, the mounting block 506 can automatically reset under the elastic force of the second spring 510, and the limiting block 507 can be driven to be inserted into the limiting groove 505 again, so that the limiting and fixing of the boss 501 are realized, and because the cross section opening of the limiting groove 505 is in a horn-shaped structure, one end of the limiting block 507 is in a trapezoidal structure, so that the limiting block 507 can be conveniently inserted into the limiting groove 505, at this time, the surface of the boss 501 is just level with the front end face of the front end cover 2, so that the boss 501 cannot cause a heightening condition, the stability of motor installation is ensured, when the motor mounting seat is provided with the bayonet, only the sliding button 502 needs to be pulled again to release the limit on the boss 501, the boss 501 can be automatically popped out of a part under the guide of the guide rod 503 and the elastic force of the first spring 504, and the limit block 507 plays a role in limiting and resisting the boss 501 at the moment, so that the condition that the boss 501 cannot be automatically withdrawn in the installation process is ensured, the boss 501 can be just clamped with the bayonet at the moment, thereby realizing the preliminary limit fixation of the motor, facilitating the subsequent installation, the conversion of the boss 501 is convenient and fast, the operation is simple, and when the front end cover 2 of the motor is close to the motor mounting seat, because the plurality of anti-collision blocks 701 in an arc structure are connected to the front end cover 2 in a sliding way through the plurality of fourth springs 703, therefore, when the motor is close to the motor mounting seat, the anti-collision blocks 701 and the anti-collision pads 702 at the front ends of the anti-collision blocks 701 can achieve an anti-collision effect, so that the situation that internal parts of the motor are damaged when the motor and the motor mounting seat are in hard collision can be effectively avoided, the mounting quality is ensured, then the coupler is aligned to the end part of the screw rod on the mounting seat, then slow insertion is performed until the front end face of the front end cover 2 is overlapped with the end face of the motor mounting seat, then the four fixing holes 801 on the front end cover 2 are aligned with the screw holes on the motor mounting seat, then the locking bolt is inserted into the fixing holes 801, in the process that the locking bolt is inserted into the fixing holes 801, the end face of the locking bolt can abut against the ball 807 on the compression rod 806, then the locking bolt is rotated to lock and fasten the front end cover 2 and the motor seat, the locking bolt can continuously extrude the compression rod 806 in the rotating and locking process, and through the rotation of the ball 807 at the end part of the compression rod 806, therefore, the friction force between the pressure rod 806 and the locking bolt can be reduced, the normal locking of the locking bolt can be ensured, in the process of continuous locking, the pressure rod 806 can continuously drive the first fixing ring 803 to move towards the end face of the motor mounting seat, because the first fixing ring 803 and the second fixing ring 805 are fixedly connected through the fifth spring 804, in the process that the pressure rod 806 drives the first fixing ring 803 to continuously slide, the shock pad 802 on the second fixing ring 805 can be continuously driven to be abutted against the motor mounting seat through the elastic pressure of the fifth spring 804, at this time, the shock pad 802 not only can play a role in avoiding the rigid vibration between the motor mounting seat and the motor, thereby playing a role in protecting the motor, but also can make the locking force of the locking bolt stronger, effectively avoid the situation that the locking bolt automatically loosens under the vibration force, and ensure the installation effect, when the motor and the motor mounting seat are mounted, and then the coupling is locked, the connection between the motor and the screw rod can be completed, and normal operation can be performed, when the motor works, the output shaft 3 rotates, because the extrusion plate 608 is fixedly connected to the output shaft 3, the extrusion plate 608 is driven to rotate when the output shaft 3 rotates, the extrusion plate 603 is continuously extruded in the rotation process of the extrusion plate 608, so that the rubber plug 604 on the contact plate 603 can be driven to perform piston motion in the gas groove 602, when the contact plate 603 drives the rubber plug 604 to slide towards the inside of the gas groove 602, at this time, the rubber plug 604 extrudes the gas in the gas groove 602 into the inside of the communicating groove 606 through the first one-way valve 605, then enters the inside of the ring groove 607, and finally is ejected from the gas outlet 601, so that dust and impurities can be prevented from a gap between the output shaft 3 and the front end cover 2 to enter the inside of the motor, the normal work of motor has been guaranteed, avoid the dust to get into the condition that causes the motor to damage, when stripper plate 608 no longer extrudees touch panel 603, touch panel 603 and rubber buffer 604 will reset under the spring action of third spring 609, outside gas supplyes from the business turn over of second check valve 610 this moment, owing to install air filter layer 611 at the inlet end of second check valve 610, consequently, can filter in air admission air duct 602 inside, avoid dust impurity secondary pollution, and when not using, can play sealed guard action through sealing plug 612.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a servo motor of convenience and shaft coupling installation, includes motor body (1) front end housing (2) are installed to the output of motor body (1) rotate on motor body (1) and front end housing (2) and be connected with output shaft (3), its characterized in that: a positioning structure (4) is mounted on the output shaft (3), a conversion structure (5) is mounted on the front end cover (2), a protection structure (6) is arranged on the front end cover (2), an anti-collision structure (7) is further mounted on the front end cover (2), and an anti-falling structure (8) is further arranged on the front end cover (2);

the positioning structure (4) comprises a bolt (401), the output shaft (3) is rotatably connected with the bolt (401), the inner portion of the output shaft (3) is slidably connected with a threaded sleeve (404) which is of a circular ring structure, the threaded sleeve (404) is in threaded connection with the bolt (401), two parallel sliding grooves (403) are formed in the output shaft (3), the inner portions of the sliding grooves (403) are respectively slidably connected with a sliding block (405), the sliding blocks (405) are fixedly connected with the threaded sleeve (404), and the other end of each sliding block (405) is fixedly connected with a positioning ring (402) which slides outside the output shaft (3).

2. The servo motor convenient for being installed with the coupler as claimed in claim 1, wherein: conversion structure (5) include guide bar (503) fixedly connected with guide bar (503) on front end housing (2) sliding connection has boss (501) on front end housing (2), just boss (501) and guide bar (503) sliding connection be equipped with spacing groove (505) on boss (501) the inside sliding connection of front end housing (2) has installation piece (506) the one end fixedly connected with stopper (507) of installation piece (506), stopper (507) and spacing groove (505) block.

3. The servo motor convenient for being installed with the coupler as claimed in claim 2, wherein: the inside sliding connection of front end housing (2) has connecting rod (508), just the one end and the installation piece (506) fixed connection of connecting rod (508), the other end and smooth button (502) fixed connection of connecting rod (508), just the one end of smooth button (502) is the arc structure.

4. The servo motor convenient for being installed with the coupler as claimed in claim 3, wherein: the guide rods (503) are arranged in a plurality of numbers, the guide rods (503) with the T-shaped cross sections are distributed in an annular array mode, a plurality of first springs (504) are sleeved outside the guide rods (503), and two ends of each first spring (504) are fixedly connected with the bosses (501) and the front end cover (2) respectively.

5. The servo motor convenient for being installed with the coupler as claimed in claim 3, wherein: the inside of front end housing (2) is two slide bars (509) of symmetrical relation fixedly connected with, just installation piece (506) and slide bar (509) sliding connection the outside cover of slide bar (509) is equipped with second spring (510), just the both ends of second spring (510) respectively with installation piece (506) and front end housing (2) fixed connection.

6. The servo motor convenient for being installed with the coupler as claimed in claim 3, wherein: spacing groove (505) are the loop configuration, just the cross-section one end of spacing groove (505) is the setting of trumpet-shaped opening, the one end of stopper (507) is the trapezium structure.

7. The servo motor convenient for being installed with the coupler as claimed in claim 1, wherein: protective structure (6) include gas tank (602) the inside of front end housing (2) is equipped with gas tank (602) the inside of gas tank (602) has rubber buffer (604) through third spring (609) sliding connection, just the both ends of third spring (609) respectively with rubber buffer (604) and front end housing (2) fixed connection the other end fixedly connected with of rubber buffer (604) supports touch panel (603) the outside fixedly connected with stripper plate (608) of output shaft (3) the inside of front end housing (2) is equipped with annular groove (607) that is the round annular structure, annular groove (607) and gas tank (602) communicate through intercommunication groove (606) first check valve (605) still are installed to the inside of intercommunication groove (606) the one end that front end housing (2) are close to output shaft (3) is annular array and is equipped with a plurality ofly and annular groove (607) communicating venthole (601) the one-way valve (610) with outside intercommunication is still installed to the one end of gas tank (602).

8. The servo motor convenient for being installed with the coupler as claimed in claim 7, wherein: one end, close to the outside, of the second one-way valve (610) is provided with a filter layer (611), the other end of the filter layer (611) is clamped with a sealing plug (612), the air grooves (602) are arranged in a plurality and distributed in an annular array mode, one end of the touch plate (603) is of an arc-shaped structure, and one end of the extrusion plate (608) is also of an arc-shaped structure.

9. The servo motor convenient for being installed with the coupler as claimed in claim 1, wherein: anticollision structure (7) are including anticollision piece (701) there are anticollision piece (701) through fourth spring (703) sliding connection on front end housing (2), just the both ends of fourth spring (703) respectively with anticollision piece (701) and front end housing (2) fixed connection the other end fixedly connected with anticollision pad (702) of anticollision piece (701), anticollision piece (701) are equipped with four, and four anticollision piece (701) all are the arc structure.

10. The servo motor convenient for being installed with the coupler as claimed in claim 1, wherein: the anti-falling structure (8) comprises a fixing hole (801), the four opposite corners of the front end cover (2) are respectively provided with the fixing hole (801), the four inner parts of the fixing holes (801) are respectively connected with a first fixing ring (803) and a second fixing ring (805) in a sliding mode, a fifth spring (804) is fixedly connected between the first fixing ring (803) and the second fixing ring (805), the other end of the second fixing ring (805) is fixedly connected with a shock pad (802), the other end of the first fixing ring (803) is fixedly connected with a plurality of compression rods (806), the compression rods (806) penetrate through the front end cover (2) and extend to the outside, the end parts of the compression rods (806) are respectively and rotatably connected with a ball (807), the outer ring of the first fixing ring (803) is fixedly connected with a moving block (808), a sixth spring (809) is fixedly connected between the moving block (808) and the front end cover (2), and the diameters of the inner parts of the first fixing ring (803), the second fixing ring (805) and the shock pad (802) are respectively greater than the diameter of the inner parts of the fixing holes (801).